Hose-clamp-applying tool



. i BY Nov. 25, 1930. J. KlvlAHo 1,783123 y* HOSE CLAMP APPLYING TOOL Filed April 5. 1928 INVENTOR.

`Patr-:lated `NoviY 25, 1931)' PATIENT `C11-#tiret y ,ront .KvIAHQ-or MARSHFIELDQTOREGON 1 Y`Hose-CLAMP1-erFLYING Toon appiieatnm'` inea Abril s,

This invention relates to a tool for applying Wire e clamping bands in the coupling of `hose sections, and has for `its primary object to simplify andiimprovezthe Construction, as

) Well as to increase thefeiiiciency utility lof devices of this character.

` `Another object of the invention topro-V" vide a device offthe above kind iirwhicli sim-V ple and eflicient'provision is made for effect- `ing a convenient land ready holding engagement of the tool With theends of the clamping band. e n 1 Other objects Will become apparent asthe nature of the invention is better understood,

15 andthe same consists in thenovel form7 corinbination and arrangement' of parts hereinafter more fully described, shown in the ac companying drawing and claimed. i In the drawing: i

Figure 1 isan elevational `view of a tool ernbodying the present `invention,` illustrating the first step in using thetool to apply a Wire e clamping band in coupling hose sections;

Figure 2 is a vievv similar to Figure 1il- "l lustrating the tool asin the second step of i applying the band;

F'gure 3 1s a View snnilarto Figure 2 illuse Vtrating the third step in applying theclampingband; y e e Figure 4 is an elevational view looking to- ."Ward the left of Figure 2; l

i Figure 5 illustrates he use of thei'tool in cutting Wire asin the `act of removing old clamping bandswhich are to be renewed; and Figure G is la fragmentary e detail View,

end of the threaded rod or stem of the tool.

I `verse grooveS to snuglyt or seat upon the* Fig. 7 is a fragmentary detail. View, show` 192e. serial 1ro.267,719.'`

intermediatetransverse member 9 of the Wire hose clamping band 10 so that itvvill be retained upon the member 9 Without slipping. As shown clearly inFigure 6, the shoe or bearing Amember 7 is provided With an axial 55 socket 11 in which the adjacent reduced end portio1`1`l12 ofthe'rod'or stem 5 is rotatably itted,` and .providedin the reduced end portion 12 adjacent its point of connection-With the threaded part of the rod 5'is an annular 60 groove 13 into Whichthe adjacent `endyof the shoe or bearing` member 7 is svt/aged4 or peenedfas at 14;.- "In this Way. the shoe or `bearing member 7 is eectively swiveled to alike. e

` Anut member 15 engages the threadsof the rod orstem 5 and is formed Withoppo- 70 sitely projecting integral studs orI pins-16 of uniform cross-sectional shape from end to end. As shown in Figure 7, the studs 16 may begof rectangular form, or they may be of cylindrical'form as shown in the remaining 75 iigures; Each stud is provided with a pair of transverseopenings 17 of a-size to snugly receive the ends of the clamping band 10 and disposed at right an les to each other obliquelyto thelongitu inal axis of the stem 8u 'as clearlyshovvnfin Figures 1 to 3 inclusive. i f 1 i The `Wire clamping-bandlOis normally of YU-"shape, and "when originally applied; the

'ing portion 9 as shown in Figure 11 The ends of the clamping bands 10 are then disposed to engagein` desired ones of the openings 17, depending upon the size `of the `clamping band andthe position at which thetool is `disposed relativefto the latter.

This Step in the use ofthe tool is clearly illustrated' in i Figure 1, and the tool is then turned bodily about the axes of the studs 16 so that the 95 ends of the band 10 are bent toward the inter-` mediate ortion 9 with the shoe or bearing member Ibrought to engage the" connecting portion 9 as shown in Figure 2. l In thisvvayv effective connection of the ends of the clamping band with the nut member 15 is provided without the use oil separate clamps, set screws or the like, and this without danger of the wirel turning relative to the studs 16. Upon -inspection of Figures 4 and 7, it will be seen that the openings 17 extend through the studs 16 in planes angular lwith respect to the axis of the tool stem 5. 1t is therefore apparent that the device is adapted for" applying clamping bands of diiiferent widths, or clamping bands wherein the legs thereof are spaced diiiierent distances apart. As is well known, tools of this character are used in eiecting coupling of hose sections 18 in the adjacent ends of which is positioned a coupling sleeve 19 of rigidform, the band 10 being applied about the adjacent ends of the hose sections 18 to firmly clamp them about the sleeve 19, as will be obvious. After the tool has been positioned as in Figure 2, the hose is eiiectively held against turning, and the tool is swung around the connecting portions 9 of the clamping band 10 to the position of Figure 3, turning the projecting end portions of the clamping band about the connecting portions 9 to effect a i'inal application i' the clamps. The projecting ends of the latter are then cut off, and the implement together with the cut-off portionsl of the clamping band are removed. It will of course be understood that when the tool is disposed as in Figure 2, the stem is rotated to cause outward movement of the nut member whereby the clamping bandvis drawn tightly upon the hose.

rlhe angularity of the openings 17 with respect to the longitudinal axis of the stein 5, and their position as spaced from the ends of the studs 16, is of particular advantage, as will' be understood from a comparison of Figs. 1 and 2. Band clamps for this purpose always have their free ends straight, and as shown in Fig.v 1, theparticular arrangement is such that by initially placing the tool in a position different from that which it occupies during the band tightening operation, the studs can be readily placed on the free lends of the band and slid along such ends to Iii) a desired position such as would approximate the distance between the notch 8 and the stud position with that of the length of the ends which project Yfrom the cross-portion 9. By then simply turning the tool to position the groove 8 on the band 9, thus placing the tool. in its tightening position, the ends of the band are bent as in Fig. 2, without straining the wire, and an efficient lock is provided to resist the pressures provided when the stem is rotated to tighten the band, such pressures simply increasing the lock effect due to the fact that, in lthis position, the bend provides that the stud-engaged portion of the wireV is then extending beyond a position at right angles to that of the portion of the wire leading to the bend from the band; in other words, the bend provides the two parts leading from the band as extending in directions angular to each other but with the angle between them less than a right angle. Hence there is no likelihood of the wire being broken under the stress, and at the same time the full stress can be provided without slippage.

The advantage of this lies in the fact that the lock is obtained without requiring any structure other than the openings themselves, so that by a simple operation of the simple opening-provided studs, the simple manipulation of the tool referred to is all that is required to provide Ithe complete preparation of the parts for tighteningpurposes.

And in this connection, the location of the pair of openings 17 of a stud at right angles to each other, is of advantage. understood by inspecting Fig. 2 or Fig. 3, the application of the stress provides a heavy pressure condition on the underside of the stud-the side which faces the clamp. lith a series of openings spaced apart a short distance and parallel to each other, the presence of the additional openings would tend to weaken the stud to resistthis pressure. By placing the openings at right angles, the weakening is present only at the point where the planes of the axes of the openings intersect, and this is'located only at the center of the stud, so that liability of the stud to split is reduced to a minimum, while at the same time the openings can be located fairly close together, and thus provide for use with bands of different sizes and without requiring excessive bending of the straight arms to position the studs.

In view of the above it will be seen that the device is extremely simple in construction, can be economically manufactured, and operate eiliciently for the purposes described.

As shown clearly in the several views, the handle or cross-piece 6 may consist of a plate having a flat intermediate portion and rounded enlarged ends 20 and 21 forming hammer heads, the handle having its intermediate iiat portion pivoted as at 22 to an. in tegral plate-like extension 23 on the adjacent end of the rod or stem 5'. These parts 6 and 23 are formed in their outer edges with cooperating notches 24 formedwith opposed cutting edges in a well known manner to forni a wire cutter. The handle or cross-piece is thus pivoted upon a transverse axis to the stem 5, and by positioning the tool as shown in Figure 5 and tilting the stem 5 laterally, one of the hammer heads will engage the hose section so as to hold the cross-piece 6 against swinging whereby the extension 23 will act as the severing blade for the wire cutter in opposition to the cutting edge of t-he crosspiece 6. However, it is to be understood that the rod or stern 5 may be provided with any convenient form of cross-bar or handle for As will be` use in turning the stem 5 in the hose clamp applying operation. Y i Minor changes may be made Without departing from the spirit and vscope of the in` vention as claimed.

What I claim as new is n 1. A deviceof the class described comprising a threaded rod havinga turning handle at one end and a clamping band engaging shoe at the other end in Which the threadedV rod is rotatablymounted, and a nutengaging the threads of the rod and having laterally projecting studs provided with transverse openings spaced from the stud ends to receive the ends of the clamping band, said openings being disposed angularly to the longitudinal axis of said Vthreaded rod, Whereby the tool is applied to the ends of the clamping band While out of tightening position andk the band ends will become anchored for tightening purposes by swinging the tool to its tightening position. n i

2. A device of the class described comprising a threaded rod having a turning handle at one end and a clamping band-engaging shoe at the other end in which the threaded rod'is rotatably mounted, and a nut engaging the threads of the rod and having laterally projecting studs provided with pairs of openings spaced from the stud ends and disposed l angularly to the longitudinal axis ofsaid threaded rod, the openings of a pair having their respective axes extending` at approximately right anglesto each other.

In testimony whereof IaiiX my signature;

`JOEL KIVIAHO. 

